trouble
How to Use Trouble
Learner’s notesIn plain EnglishA problem or source of worry, or the act of causing someone worry or extra effort.
"Trouble" is usually uncountable when it means general difficulty ("in trouble"), but countable when it means specific problems ("money troubles").
Word Forms
troubled past tense, troubles plural, troubles singular
Fill the Gap
Can you complete this real example?
She's in _____ with her boss after missing the deadline.
Etymology
From Old French troubler, "to disturb or stir up," ultimately from a Latin root meaning a disorderly crowd — the same idea of things being "stirred up" survives in the modern sense.